Answer:
Air Resistance
Explanation:
If you were to drop both items on a plant without an atmosphere, they would both hit the ground at the same time. Since a feather doesn't have much mass compared to the hammer, it takes more time for the feather to "push" itself through and overcome the opposite push from the air
Answer:
<u>The blade undergoes 40 revolutions, so neither of the given options is correct! </u>
Explanation:
The revolutions can be found using the following equation:
Where:
α is the angular acceleration
t is the time = 2.5 s
is the initial angular velocity = 1500 rev/min
First, we need to find the angular acceleration:
Now, the revolutions that the blade undergo are:
<u>Therefore, the blade undergoes 40 revolutions, so neither of the given options is correct! </u>
I hope it helps you!
Earth's rotation produces two high tides . This occurs because the moon revolves around the Earth in the same direction that the Earth rotates around its axis. ... Because the Earth rotates through two tidal “bulges” every lunar day, coastal areas experience two high and two low tides every 24 hours and 50 minutes. High tides occur 12 hours and 25 minutes apart.
If you're given the force and the length of time that the force acted,
then you can determine momentum, with units of [mass-length/time].
Without more information, you can't determine power, watts, energy,
joules, or distance.
Energy and momentum are always conserved. Kinetic energy is not conserved in an inelastic collision though. And that is because it is converted to another form of energy